/**
 * @Author DengJia
 * @Date 2021/8/21 17:50
 * @Description
 */

public class ClassA {
    public ClassA(int ia) {
        System.out.println("class_a: " + ia);
    }
}

class ClassB {
    public ClassB(int ib){
        System.out.println("class_b: " + ib);
    }
}

class ClassC extends ClassA {
    private ClassB classB;

    public ClassC(int ic) {
        super(ic);
    }


    public static void main(String[] args) {
        new ClassC(444);
    }
}
